KINESIOL 2C03 Study Guide - Midterm Guide: Myocyte, Muscle Contraction, Elastic Energy

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 2C03
• Professor: Audrey Hicks

Document Summary

A high velocity compared to a low velocity generates more ecc force. Velocity of ecc affects ssc potentiation even if con velocity doesn"t change. As velocity increases, force decreases: using the ssc increases overall con after ecc. > relative (%) potentiation at higher velocities. Explains why ssc is most important in running, jumping, throwing, kicking (fast movements) At a given velocity, ecc contractions can be submaximal or maximal. Max ecc followed by max con is done on isokinetic dynamometers (lab 2) Sub max ecc followed by max con done in throwing and jumping. Sub max ecc followed by submax con done in weight training (several reps) When time is needed for ecc phase and can"t be spared (backstroke push off) When overuse can lead to injury: high impact aerobic and high velocity plyometrics (step classes) Can create too much ssc (jump from too high: inhibition and can"t absorb shock. Increased ecc force (strength: increased muscle size, increased neural activity.